Three Summedium

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

vector<vector<int>> threeSum(vector<int>& nums) {
    // TODO: find all unique triplets that sum to zero
    return {};
}

int main() {
    vector<int> nums = {-1, 0, 1, 2, -1, -4};
    auto result = threeSum(nums);
    for (auto& t : result) {
        cout << "[" << t[0] << ", " << t[1] << ", " << t[2] << "]
";
    }
    return 0;
}